Shuttle for sewing-machines



1&5 ModeL) H. A. BATES. V SHUTTLE FOR SEWING MACHINES.

Nol 549,265. Pat en ted Nov. 5, 1895.

AN DREW ELRAHAM. PHOTOLI'MQWASHINGTDN .D C.

NITED STATES PATENT FFICE.

HENRY A. BATES, OF YONKERS, NEXV YORK.

SHUTTLE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 549,265, dated November5, 1895. Application filedJ'une '7, 1894. Serial No. 513,728. (Nomodel.)

To all whom it may concern:

Be it known that I, HENRY A. BATES, a citizen of the United States,residing at Yonkers, in the county of Vestchester and State of New York,have invented an Improvement in Sewing-Machine Shuttles, of which thefollowing is a specification.

The object of the present invention is to connect the case that holdsthe bobbin of thread with the revolving or oscillating shuttle, so thatthe cover of the bobbin-case can be removed for the insertion of a freshbobbin of thread and replaced and held by friction, the thread itself ofthe bobbin being sup ported between the back plate or disk of the caseand the movable cover, and the case can remain stationary as the threadis drawn off, because the shuttle-hook can be revolved or oscillatedfreely while the bobbin-case is held to the central pin.

In the drawings, Figure 1 represents a shuttle-hook with the caseremoved. Fig. 2 shows the inner side of the bobbin-case; and Fig. 3 is avertical section of the parts at the line so a: of Fig. 1, thebobbin-case being shown in position.

The shuttle-hook B is of any desired size or shape. The shuttle-hookrepresented in the drawings is well known in the trade, and it containsa central pin 0, which is usually tubular, so as to lessen the weight.

The bobbin-case A is adapted to receive within it the bobbin of thread,which is usually wound upon a short paper tube, and in shuttles of thisgeneral character the case A has confined the bobbin of thread betweenIts own inner surface and the flat side of the shuttle; but in thisarrangement the vibration or rotation of the shuttle and hook has tendedto injure the thread and increase the liability of the same becomingentangled around the center pin. To avoid the beforementioneddifficulty, the disk D is provided, and it has a short central tube r,that surrounds the central pin 0 and turns freely thereon, and there isa holding-collar s, that projects from the central pin 0 at the endofthe tube 0". This holding-collar s is represented as provided with atubular extension passing into thepentral pin 0, which is tubular; butthe holding-collar s will be made according to the character of thecentral pin 0, the object of such holding-collar 8 being simply to holdthe disk D and its tube 1 upon the pin to allow them to turn freely uponsuch central pin 0.

The bobbin-case A is usually provided with a projecting arm, as seen inFig. 2, and with a spring, beneath which the thread is passed, so thatthe projecting arm holds the bobbincase from revolving or turning as theshuttle is either rotated or oscillated, and this bobbin-case A has acentral tube 6, which is of a size to set around outside of the tube 1",and such tube 6 is split, so that it may spring and accommodate itselfto the tube 4' and be passed on or off with facility; but the parts willhold together sufficiently for properly retaining the bobbin of threadwithin the case and between the same and the disk D, and it will now beunderstood that the two parts A and D of the bobbin-case are heldtogether by friction to properly support the thread of the bobbin, andthe rotation or oscillation of the shuttle-hook does not in any manneraffect the thread itself of the bobbin. Hence such thread will draw offas the sewing progresses with greater uniformity of tension thanheretofore, and the thread will not be liable to become injured orentangled around the central pin of the shuttle, and the bobbin-case isretained in its proper position relatively to the shuttle-hook.

I claim as my invention- The combination with the shuttle having acentral pin, of a disk D and integral tube 0' surrounding the centralpin of the shuttle and movable freely thereon, a holding collar forconfining the tube and disk in position and the bobbin case A having acentral split tube e to surround the tube 1" and hold by frictionthereon, substantially as set forth.

Signed by me this 4th day of June, 1894:.

- HENRY A. BATES.

Witnesses GEO. T. PINOKNEY, A. M. OLIVER.

